1 /* 2 * Auvitek AU0828 USB Bridge (Analog video support) 3 * 4 * Copyright (C) 2009 Devin Heitmueller <dheitmueller@linuxtv.org> 5 * Copyright (C) 2005-2008 Auvitek International, Ltd. 6 * 7 * This program is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU General Public License 9 * As published by the Free Software Foundation; either version 2 10 * of the License, or (at your option) any later version. 11 * 12 * This program is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * GNU General Public License for more details. 16 * 17 * You should have received a copy of the GNU General Public License 18 * along with this program; if not, write to the Free Software 19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 20 * 02110-1301, USA. 21 */ 22 23 /* Developer Notes: 24 * 25 * The hardware scaler supported is unimplemented 26 * AC97 audio support is unimplemented (only i2s audio mode) 27 * 28 */ 29 30 #include "au0828.h" 31 32 #include <linux/module.h> 33 #include <linux/slab.h> 34 #include <linux/init.h> 35 #include <linux/device.h> 36 #include <media/v4l2-common.h> 37 #include <media/v4l2-ioctl.h> 38 #include <media/v4l2-event.h> 39 #include <media/tuner.h> 40 #include "au0828-reg.h" 41 42 static DEFINE_MUTEX(au0828_sysfs_lock); 43 44 /* ------------------------------------------------------------------ 45 Videobuf operations 46 ------------------------------------------------------------------*/ 47 48 static unsigned int isoc_debug; 49 module_param(isoc_debug, int, 0644); 50 MODULE_PARM_DESC(isoc_debug, "enable debug messages [isoc transfers]"); 51 52 #define au0828_isocdbg(fmt, arg...) \ 53 do {\ 54 if (isoc_debug) { \ 55 pr_info("au0828 %s :"fmt, \ 56 __func__ , ##arg); \ 57 } \ 58 } while (0) 59 60 static inline void i2c_gate_ctrl(struct au0828_dev *dev, int val) 61 { 62 if (dev->dvb.frontend && dev->dvb.frontend->ops.analog_ops.i2c_gate_ctrl) 63 dev->dvb.frontend->ops.analog_ops.i2c_gate_ctrl(dev->dvb.frontend, val); 64 } 65 66 static inline void print_err_status(struct au0828_dev *dev, 67 int packet, int status) 68 { 69 char *errmsg = "Unknown"; 70 71 switch (status) { 72 case -ENOENT: 73 errmsg = "unlinked synchronuously"; 74 break; 75 case -ECONNRESET: 76 errmsg = "unlinked asynchronuously"; 77 break; 78 case -ENOSR: 79 errmsg = "Buffer error (overrun)"; 80 break; 81 case -EPIPE: 82 errmsg = "Stalled (device not responding)"; 83 break; 84 case -EOVERFLOW: 85 errmsg = "Babble (bad cable?)"; 86 break; 87 case -EPROTO: 88 errmsg = "Bit-stuff error (bad cable?)"; 89 break; 90 case -EILSEQ: 91 errmsg = "CRC/Timeout (could be anything)"; 92 break; 93 case -ETIME: 94 errmsg = "Device does not respond"; 95 break; 96 } 97 if (packet < 0) { 98 au0828_isocdbg("URB status %d [%s].\n", status, errmsg); 99 } else { 100 au0828_isocdbg("URB packet %d, status %d [%s].\n", 101 packet, status, errmsg); 102 } 103 } 104 105 static int check_dev(struct au0828_dev *dev) 106 { 107 if (dev->dev_state & DEV_DISCONNECTED) { 108 pr_info("v4l2 ioctl: device not present\n"); 109 return -ENODEV; 110 } 111 112 if (dev->dev_state & DEV_MISCONFIGURED) { 113 pr_info("v4l2 ioctl: device is misconfigured; " 114 "close and open it again\n"); 115 return -EIO; 116 } 117 return 0; 118 } 119 120 /* 121 * IRQ callback, called by URB callback 122 */ 123 static void au0828_irq_callback(struct urb *urb) 124 { 125 struct au0828_dmaqueue *dma_q = urb->context; 126 struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vidq); 127 unsigned long flags = 0; 128 int i; 129 130 switch (urb->status) { 131 case 0: /* success */ 132 case -ETIMEDOUT: /* NAK */ 133 break; 134 case -ECONNRESET: /* kill */ 135 case -ENOENT: 136 case -ESHUTDOWN: 137 au0828_isocdbg("au0828_irq_callback called: status kill\n"); 138 return; 139 default: /* unknown error */ 140 au0828_isocdbg("urb completition error %d.\n", urb->status); 141 break; 142 } 143 144 /* Copy data from URB */ 145 spin_lock_irqsave(&dev->slock, flags); 146 dev->isoc_ctl.isoc_copy(dev, urb); 147 spin_unlock_irqrestore(&dev->slock, flags); 148 149 /* Reset urb buffers */ 150 for (i = 0; i < urb->number_of_packets; i++) { 151 urb->iso_frame_desc[i].status = 0; 152 urb->iso_frame_desc[i].actual_length = 0; 153 } 154 urb->status = 0; 155 156 urb->status = usb_submit_urb(urb, GFP_ATOMIC); 157 if (urb->status) { 158 au0828_isocdbg("urb resubmit failed (error=%i)\n", 159 urb->status); 160 } 161 dev->stream_state = STREAM_ON; 162 } 163 164 /* 165 * Stop and Deallocate URBs 166 */ 167 static void au0828_uninit_isoc(struct au0828_dev *dev) 168 { 169 struct urb *urb; 170 int i; 171 172 au0828_isocdbg("au0828: called au0828_uninit_isoc\n"); 173 174 dev->isoc_ctl.nfields = -1; 175 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) { 176 urb = dev->isoc_ctl.urb[i]; 177 if (urb) { 178 if (!irqs_disabled()) 179 usb_kill_urb(urb); 180 else 181 usb_unlink_urb(urb); 182 183 if (dev->isoc_ctl.transfer_buffer[i]) { 184 usb_free_coherent(dev->usbdev, 185 urb->transfer_buffer_length, 186 dev->isoc_ctl.transfer_buffer[i], 187 urb->transfer_dma); 188 } 189 usb_free_urb(urb); 190 dev->isoc_ctl.urb[i] = NULL; 191 } 192 dev->isoc_ctl.transfer_buffer[i] = NULL; 193 } 194 195 kfree(dev->isoc_ctl.urb); 196 kfree(dev->isoc_ctl.transfer_buffer); 197 198 dev->isoc_ctl.urb = NULL; 199 dev->isoc_ctl.transfer_buffer = NULL; 200 dev->isoc_ctl.num_bufs = 0; 201 202 dev->stream_state = STREAM_OFF; 203 } 204 205 /* 206 * Allocate URBs and start IRQ 207 */ 208 static int au0828_init_isoc(struct au0828_dev *dev, int max_packets, 209 int num_bufs, int max_pkt_size, 210 int (*isoc_copy) (struct au0828_dev *dev, struct urb *urb)) 211 { 212 struct au0828_dmaqueue *dma_q = &dev->vidq; 213 int i; 214 int sb_size, pipe; 215 struct urb *urb; 216 int j, k; 217 int rc; 218 219 au0828_isocdbg("au0828: called au0828_prepare_isoc\n"); 220 221 dev->isoc_ctl.isoc_copy = isoc_copy; 222 dev->isoc_ctl.num_bufs = num_bufs; 223 224 dev->isoc_ctl.urb = kzalloc(sizeof(void *)*num_bufs, GFP_KERNEL); 225 if (!dev->isoc_ctl.urb) { 226 au0828_isocdbg("cannot alloc memory for usb buffers\n"); 227 return -ENOMEM; 228 } 229 230 dev->isoc_ctl.transfer_buffer = kzalloc(sizeof(void *)*num_bufs, 231 GFP_KERNEL); 232 if (!dev->isoc_ctl.transfer_buffer) { 233 au0828_isocdbg("cannot allocate memory for usb transfer\n"); 234 kfree(dev->isoc_ctl.urb); 235 return -ENOMEM; 236 } 237 238 dev->isoc_ctl.max_pkt_size = max_pkt_size; 239 dev->isoc_ctl.buf = NULL; 240 241 sb_size = max_packets * dev->isoc_ctl.max_pkt_size; 242 243 /* allocate urbs and transfer buffers */ 244 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) { 245 urb = usb_alloc_urb(max_packets, GFP_KERNEL); 246 if (!urb) { 247 au0828_isocdbg("cannot alloc isoc_ctl.urb %i\n", i); 248 au0828_uninit_isoc(dev); 249 return -ENOMEM; 250 } 251 dev->isoc_ctl.urb[i] = urb; 252 253 dev->isoc_ctl.transfer_buffer[i] = usb_alloc_coherent(dev->usbdev, 254 sb_size, GFP_KERNEL, &urb->transfer_dma); 255 if (!dev->isoc_ctl.transfer_buffer[i]) { 256 printk("unable to allocate %i bytes for transfer" 257 " buffer %i%s\n", 258 sb_size, i, 259 in_interrupt() ? " while in int" : ""); 260 au0828_uninit_isoc(dev); 261 return -ENOMEM; 262 } 263 memset(dev->isoc_ctl.transfer_buffer[i], 0, sb_size); 264 265 pipe = usb_rcvisocpipe(dev->usbdev, 266 dev->isoc_in_endpointaddr), 267 268 usb_fill_int_urb(urb, dev->usbdev, pipe, 269 dev->isoc_ctl.transfer_buffer[i], sb_size, 270 au0828_irq_callback, dma_q, 1); 271 272 urb->number_of_packets = max_packets; 273 urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP; 274 275 k = 0; 276 for (j = 0; j < max_packets; j++) { 277 urb->iso_frame_desc[j].offset = k; 278 urb->iso_frame_desc[j].length = 279 dev->isoc_ctl.max_pkt_size; 280 k += dev->isoc_ctl.max_pkt_size; 281 } 282 } 283 284 /* submit urbs and enables IRQ */ 285 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) { 286 rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_ATOMIC); 287 if (rc) { 288 au0828_isocdbg("submit of urb %i failed (error=%i)\n", 289 i, rc); 290 au0828_uninit_isoc(dev); 291 return rc; 292 } 293 } 294 295 return 0; 296 } 297 298 /* 299 * Announces that a buffer were filled and request the next 300 */ 301 static inline void buffer_filled(struct au0828_dev *dev, 302 struct au0828_dmaqueue *dma_q, 303 struct au0828_buffer *buf) 304 { 305 struct vb2_buffer *vb = &buf->vb; 306 struct vb2_queue *q = vb->vb2_queue; 307 308 /* Advice that buffer was filled */ 309 au0828_isocdbg("[%p/%d] wakeup\n", buf, buf->top_field); 310 311 if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) 312 vb->v4l2_buf.sequence = dev->frame_count++; 313 else 314 vb->v4l2_buf.sequence = dev->vbi_frame_count++; 315 316 vb->v4l2_buf.field = V4L2_FIELD_INTERLACED; 317 v4l2_get_timestamp(&vb->v4l2_buf.timestamp); 318 vb2_buffer_done(vb, VB2_BUF_STATE_DONE); 319 } 320 321 /* 322 * Identify the buffer header type and properly handles 323 */ 324 static void au0828_copy_video(struct au0828_dev *dev, 325 struct au0828_dmaqueue *dma_q, 326 struct au0828_buffer *buf, 327 unsigned char *p, 328 unsigned char *outp, unsigned long len) 329 { 330 void *fieldstart, *startwrite, *startread; 331 int linesdone, currlinedone, offset, lencopy, remain; 332 int bytesperline = dev->width << 1; /* Assumes 16-bit depth @@@@ */ 333 334 if (len == 0) 335 return; 336 337 if (dma_q->pos + len > buf->length) 338 len = buf->length - dma_q->pos; 339 340 startread = p; 341 remain = len; 342 343 /* Interlaces frame */ 344 if (buf->top_field) 345 fieldstart = outp; 346 else 347 fieldstart = outp + bytesperline; 348 349 linesdone = dma_q->pos / bytesperline; 350 currlinedone = dma_q->pos % bytesperline; 351 offset = linesdone * bytesperline * 2 + currlinedone; 352 startwrite = fieldstart + offset; 353 lencopy = bytesperline - currlinedone; 354 lencopy = lencopy > remain ? remain : lencopy; 355 356 if ((char *)startwrite + lencopy > (char *)outp + buf->length) { 357 au0828_isocdbg("Overflow of %zi bytes past buffer end (1)\n", 358 ((char *)startwrite + lencopy) - 359 ((char *)outp + buf->length)); 360 remain = (char *)outp + buf->length - (char *)startwrite; 361 lencopy = remain; 362 } 363 if (lencopy <= 0) 364 return; 365 memcpy(startwrite, startread, lencopy); 366 367 remain -= lencopy; 368 369 while (remain > 0) { 370 startwrite += lencopy + bytesperline; 371 startread += lencopy; 372 if (bytesperline > remain) 373 lencopy = remain; 374 else 375 lencopy = bytesperline; 376 377 if ((char *)startwrite + lencopy > (char *)outp + 378 buf->length) { 379 au0828_isocdbg("Overflow %zi bytes past buf end (2)\n", 380 ((char *)startwrite + lencopy) - 381 ((char *)outp + buf->length)); 382 lencopy = remain = (char *)outp + buf->length - 383 (char *)startwrite; 384 } 385 if (lencopy <= 0) 386 break; 387 388 memcpy(startwrite, startread, lencopy); 389 390 remain -= lencopy; 391 } 392 393 if (offset > 1440) { 394 /* We have enough data to check for greenscreen */ 395 if (outp[0] < 0x60 && outp[1440] < 0x60) 396 dev->greenscreen_detected = 1; 397 } 398 399 dma_q->pos += len; 400 } 401 402 /* 403 * video-buf generic routine to get the next available buffer 404 */ 405 static inline void get_next_buf(struct au0828_dmaqueue *dma_q, 406 struct au0828_buffer **buf) 407 { 408 struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vidq); 409 410 if (list_empty(&dma_q->active)) { 411 au0828_isocdbg("No active queue to serve\n"); 412 dev->isoc_ctl.buf = NULL; 413 *buf = NULL; 414 return; 415 } 416 417 /* Get the next buffer */ 418 *buf = list_entry(dma_q->active.next, struct au0828_buffer, list); 419 /* Cleans up buffer - Useful for testing for frame/URB loss */ 420 list_del(&(*buf)->list); 421 dma_q->pos = 0; 422 (*buf)->vb_buf = (*buf)->mem; 423 dev->isoc_ctl.buf = *buf; 424 425 return; 426 } 427 428 static void au0828_copy_vbi(struct au0828_dev *dev, 429 struct au0828_dmaqueue *dma_q, 430 struct au0828_buffer *buf, 431 unsigned char *p, 432 unsigned char *outp, unsigned long len) 433 { 434 unsigned char *startwrite, *startread; 435 int bytesperline; 436 int i, j = 0; 437 438 if (dev == NULL) { 439 au0828_isocdbg("dev is null\n"); 440 return; 441 } 442 443 if (dma_q == NULL) { 444 au0828_isocdbg("dma_q is null\n"); 445 return; 446 } 447 if (buf == NULL) 448 return; 449 if (p == NULL) { 450 au0828_isocdbg("p is null\n"); 451 return; 452 } 453 if (outp == NULL) { 454 au0828_isocdbg("outp is null\n"); 455 return; 456 } 457 458 bytesperline = dev->vbi_width; 459 460 if (dma_q->pos + len > buf->length) 461 len = buf->length - dma_q->pos; 462 463 startread = p; 464 startwrite = outp + (dma_q->pos / 2); 465 466 /* Make sure the bottom field populates the second half of the frame */ 467 if (buf->top_field == 0) 468 startwrite += bytesperline * dev->vbi_height; 469 470 for (i = 0; i < len; i += 2) 471 startwrite[j++] = startread[i+1]; 472 473 dma_q->pos += len; 474 } 475 476 477 /* 478 * video-buf generic routine to get the next available VBI buffer 479 */ 480 static inline void vbi_get_next_buf(struct au0828_dmaqueue *dma_q, 481 struct au0828_buffer **buf) 482 { 483 struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vbiq); 484 485 if (list_empty(&dma_q->active)) { 486 au0828_isocdbg("No active queue to serve\n"); 487 dev->isoc_ctl.vbi_buf = NULL; 488 *buf = NULL; 489 return; 490 } 491 492 /* Get the next buffer */ 493 *buf = list_entry(dma_q->active.next, struct au0828_buffer, list); 494 /* Cleans up buffer - Useful for testing for frame/URB loss */ 495 list_del(&(*buf)->list); 496 dma_q->pos = 0; 497 (*buf)->vb_buf = (*buf)->mem; 498 dev->isoc_ctl.vbi_buf = *buf; 499 return; 500 } 501 502 /* 503 * Controls the isoc copy of each urb packet 504 */ 505 static inline int au0828_isoc_copy(struct au0828_dev *dev, struct urb *urb) 506 { 507 struct au0828_buffer *buf; 508 struct au0828_buffer *vbi_buf; 509 struct au0828_dmaqueue *dma_q = urb->context; 510 struct au0828_dmaqueue *vbi_dma_q = &dev->vbiq; 511 unsigned char *outp = NULL; 512 unsigned char *vbioutp = NULL; 513 int i, len = 0, rc = 1; 514 unsigned char *p; 515 unsigned char fbyte; 516 unsigned int vbi_field_size; 517 unsigned int remain, lencopy; 518 519 if (!dev) 520 return 0; 521 522 if ((dev->dev_state & DEV_DISCONNECTED) || 523 (dev->dev_state & DEV_MISCONFIGURED)) 524 return 0; 525 526 if (urb->status < 0) { 527 print_err_status(dev, -1, urb->status); 528 if (urb->status == -ENOENT) 529 return 0; 530 } 531 532 buf = dev->isoc_ctl.buf; 533 if (buf != NULL) 534 outp = vb2_plane_vaddr(&buf->vb, 0); 535 536 vbi_buf = dev->isoc_ctl.vbi_buf; 537 if (vbi_buf != NULL) 538 vbioutp = vb2_plane_vaddr(&vbi_buf->vb, 0); 539 540 for (i = 0; i < urb->number_of_packets; i++) { 541 int status = urb->iso_frame_desc[i].status; 542 543 if (status < 0) { 544 print_err_status(dev, i, status); 545 if (urb->iso_frame_desc[i].status != -EPROTO) 546 continue; 547 } 548 549 if (urb->iso_frame_desc[i].actual_length <= 0) 550 continue; 551 552 if (urb->iso_frame_desc[i].actual_length > 553 dev->max_pkt_size) { 554 au0828_isocdbg("packet bigger than packet size"); 555 continue; 556 } 557 558 p = urb->transfer_buffer + urb->iso_frame_desc[i].offset; 559 fbyte = p[0]; 560 len = urb->iso_frame_desc[i].actual_length - 4; 561 p += 4; 562 563 if (fbyte & 0x80) { 564 len -= 4; 565 p += 4; 566 au0828_isocdbg("Video frame %s\n", 567 (fbyte & 0x40) ? "odd" : "even"); 568 if (fbyte & 0x40) { 569 /* VBI */ 570 if (vbi_buf != NULL) 571 buffer_filled(dev, vbi_dma_q, vbi_buf); 572 vbi_get_next_buf(vbi_dma_q, &vbi_buf); 573 if (vbi_buf == NULL) 574 vbioutp = NULL; 575 else 576 vbioutp = vb2_plane_vaddr( 577 &vbi_buf->vb, 0); 578 579 /* Video */ 580 if (buf != NULL) 581 buffer_filled(dev, dma_q, buf); 582 get_next_buf(dma_q, &buf); 583 if (buf == NULL) 584 outp = NULL; 585 else 586 outp = vb2_plane_vaddr(&buf->vb, 0); 587 588 /* As long as isoc traffic is arriving, keep 589 resetting the timer */ 590 if (dev->vid_timeout_running) 591 mod_timer(&dev->vid_timeout, 592 jiffies + (HZ / 10)); 593 if (dev->vbi_timeout_running) 594 mod_timer(&dev->vbi_timeout, 595 jiffies + (HZ / 10)); 596 } 597 598 if (buf != NULL) { 599 if (fbyte & 0x40) 600 buf->top_field = 1; 601 else 602 buf->top_field = 0; 603 } 604 605 if (vbi_buf != NULL) { 606 if (fbyte & 0x40) 607 vbi_buf->top_field = 1; 608 else 609 vbi_buf->top_field = 0; 610 } 611 612 dev->vbi_read = 0; 613 vbi_dma_q->pos = 0; 614 dma_q->pos = 0; 615 } 616 617 vbi_field_size = dev->vbi_width * dev->vbi_height * 2; 618 if (dev->vbi_read < vbi_field_size) { 619 remain = vbi_field_size - dev->vbi_read; 620 if (len < remain) 621 lencopy = len; 622 else 623 lencopy = remain; 624 625 if (vbi_buf != NULL) 626 au0828_copy_vbi(dev, vbi_dma_q, vbi_buf, p, 627 vbioutp, len); 628 629 len -= lencopy; 630 p += lencopy; 631 dev->vbi_read += lencopy; 632 } 633 634 if (dev->vbi_read >= vbi_field_size && buf != NULL) 635 au0828_copy_video(dev, dma_q, buf, p, outp, len); 636 } 637 return rc; 638 } 639 640 static int queue_setup(struct vb2_queue *vq, const struct v4l2_format *fmt, 641 unsigned int *nbuffers, unsigned int *nplanes, 642 unsigned int sizes[], void *alloc_ctxs[]) 643 { 644 struct au0828_dev *dev = vb2_get_drv_priv(vq); 645 unsigned long img_size = dev->height * dev->bytesperline; 646 unsigned long size; 647 648 size = fmt ? fmt->fmt.pix.sizeimage : img_size; 649 if (size < img_size) 650 return -EINVAL; 651 652 *nplanes = 1; 653 sizes[0] = size; 654 655 return 0; 656 } 657 658 static int 659 buffer_prepare(struct vb2_buffer *vb) 660 { 661 struct au0828_buffer *buf = container_of(vb, struct au0828_buffer, vb); 662 struct au0828_dev *dev = vb2_get_drv_priv(vb->vb2_queue); 663 664 buf->length = dev->height * dev->bytesperline; 665 666 if (vb2_plane_size(vb, 0) < buf->length) { 667 pr_err("%s data will not fit into plane (%lu < %lu)\n", 668 __func__, vb2_plane_size(vb, 0), buf->length); 669 return -EINVAL; 670 } 671 vb2_set_plane_payload(&buf->vb, 0, buf->length); 672 return 0; 673 } 674 675 static void 676 buffer_queue(struct vb2_buffer *vb) 677 { 678 struct au0828_buffer *buf = container_of(vb, 679 struct au0828_buffer, 680 vb); 681 struct au0828_dev *dev = vb2_get_drv_priv(vb->vb2_queue); 682 struct au0828_dmaqueue *vidq = &dev->vidq; 683 unsigned long flags = 0; 684 685 buf->mem = vb2_plane_vaddr(vb, 0); 686 buf->length = vb2_plane_size(vb, 0); 687 688 spin_lock_irqsave(&dev->slock, flags); 689 list_add_tail(&buf->list, &vidq->active); 690 spin_unlock_irqrestore(&dev->slock, flags); 691 } 692 693 static int au0828_i2s_init(struct au0828_dev *dev) 694 { 695 /* Enable i2s mode */ 696 au0828_writereg(dev, AU0828_AUDIOCTRL_50C, 0x01); 697 return 0; 698 } 699 700 /* 701 * Auvitek au0828 analog stream enable 702 */ 703 static int au0828_analog_stream_enable(struct au0828_dev *d) 704 { 705 struct usb_interface *iface; 706 int ret, h, w; 707 708 dprintk(1, "au0828_analog_stream_enable called\n"); 709 710 iface = usb_ifnum_to_if(d->usbdev, 0); 711 if (iface && iface->cur_altsetting->desc.bAlternateSetting != 5) { 712 dprintk(1, "Changing intf#0 to alt 5\n"); 713 /* set au0828 interface0 to AS5 here again */ 714 ret = usb_set_interface(d->usbdev, 0, 5); 715 if (ret < 0) { 716 pr_info("Au0828 can't set alt setting to 5!\n"); 717 return -EBUSY; 718 } 719 } 720 721 h = d->height / 2 + 2; 722 w = d->width * 2; 723 724 au0828_writereg(d, AU0828_SENSORCTRL_VBI_103, 0x00); 725 au0828_writereg(d, 0x106, 0x00); 726 /* set x position */ 727 au0828_writereg(d, 0x110, 0x00); 728 au0828_writereg(d, 0x111, 0x00); 729 au0828_writereg(d, 0x114, w & 0xff); 730 au0828_writereg(d, 0x115, w >> 8); 731 /* set y position */ 732 au0828_writereg(d, 0x112, 0x00); 733 au0828_writereg(d, 0x113, 0x00); 734 au0828_writereg(d, 0x116, h & 0xff); 735 au0828_writereg(d, 0x117, h >> 8); 736 au0828_writereg(d, AU0828_SENSORCTRL_100, 0xb3); 737 738 return 0; 739 } 740 741 static int au0828_analog_stream_disable(struct au0828_dev *d) 742 { 743 dprintk(1, "au0828_analog_stream_disable called\n"); 744 au0828_writereg(d, AU0828_SENSORCTRL_100, 0x0); 745 return 0; 746 } 747 748 static void au0828_analog_stream_reset(struct au0828_dev *dev) 749 { 750 dprintk(1, "au0828_analog_stream_reset called\n"); 751 au0828_writereg(dev, AU0828_SENSORCTRL_100, 0x0); 752 mdelay(30); 753 au0828_writereg(dev, AU0828_SENSORCTRL_100, 0xb3); 754 } 755 756 /* 757 * Some operations needs to stop current streaming 758 */ 759 static int au0828_stream_interrupt(struct au0828_dev *dev) 760 { 761 int ret = 0; 762 763 dev->stream_state = STREAM_INTERRUPT; 764 if (dev->dev_state == DEV_DISCONNECTED) 765 return -ENODEV; 766 else if (ret) { 767 dev->dev_state = DEV_MISCONFIGURED; 768 dprintk(1, "%s device is misconfigured!\n", __func__); 769 return ret; 770 } 771 return 0; 772 } 773 774 int au0828_start_analog_streaming(struct vb2_queue *vq, unsigned int count) 775 { 776 struct au0828_dev *dev = vb2_get_drv_priv(vq); 777 int rc = 0; 778 779 dprintk(1, "au0828_start_analog_streaming called %d\n", 780 dev->streaming_users); 781 782 if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) 783 dev->frame_count = 0; 784 else 785 dev->vbi_frame_count = 0; 786 787 if (dev->streaming_users == 0) { 788 /* If we were doing ac97 instead of i2s, it would go here...*/ 789 au0828_i2s_init(dev); 790 rc = au0828_init_isoc(dev, AU0828_ISO_PACKETS_PER_URB, 791 AU0828_MAX_ISO_BUFS, dev->max_pkt_size, 792 au0828_isoc_copy); 793 if (rc < 0) { 794 pr_info("au0828_init_isoc failed\n"); 795 return rc; 796 } 797 798 if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) { 799 v4l2_device_call_all(&dev->v4l2_dev, 0, video, 800 s_stream, 1); 801 dev->vid_timeout_running = 1; 802 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10)); 803 } else if (vq->type == V4L2_BUF_TYPE_VBI_CAPTURE) { 804 dev->vbi_timeout_running = 1; 805 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10)); 806 } 807 } 808 dev->streaming_users++; 809 return rc; 810 } 811 812 static void au0828_stop_streaming(struct vb2_queue *vq) 813 { 814 struct au0828_dev *dev = vb2_get_drv_priv(vq); 815 struct au0828_dmaqueue *vidq = &dev->vidq; 816 unsigned long flags = 0; 817 818 dprintk(1, "au0828_stop_streaming called %d\n", dev->streaming_users); 819 820 if (dev->streaming_users-- == 1) 821 au0828_uninit_isoc(dev); 822 823 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 0); 824 dev->vid_timeout_running = 0; 825 del_timer_sync(&dev->vid_timeout); 826 827 spin_lock_irqsave(&dev->slock, flags); 828 if (dev->isoc_ctl.buf != NULL) { 829 vb2_buffer_done(&dev->isoc_ctl.buf->vb, VB2_BUF_STATE_ERROR); 830 dev->isoc_ctl.buf = NULL; 831 } 832 while (!list_empty(&vidq->active)) { 833 struct au0828_buffer *buf; 834 835 buf = list_entry(vidq->active.next, struct au0828_buffer, list); 836 vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR); 837 list_del(&buf->list); 838 } 839 spin_unlock_irqrestore(&dev->slock, flags); 840 } 841 842 void au0828_stop_vbi_streaming(struct vb2_queue *vq) 843 { 844 struct au0828_dev *dev = vb2_get_drv_priv(vq); 845 struct au0828_dmaqueue *vbiq = &dev->vbiq; 846 unsigned long flags = 0; 847 848 dprintk(1, "au0828_stop_vbi_streaming called %d\n", 849 dev->streaming_users); 850 851 if (dev->streaming_users-- == 1) 852 au0828_uninit_isoc(dev); 853 854 spin_lock_irqsave(&dev->slock, flags); 855 if (dev->isoc_ctl.vbi_buf != NULL) { 856 vb2_buffer_done(&dev->isoc_ctl.vbi_buf->vb, 857 VB2_BUF_STATE_ERROR); 858 dev->isoc_ctl.vbi_buf = NULL; 859 } 860 while (!list_empty(&vbiq->active)) { 861 struct au0828_buffer *buf; 862 863 buf = list_entry(vbiq->active.next, struct au0828_buffer, list); 864 list_del(&buf->list); 865 vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR); 866 } 867 spin_unlock_irqrestore(&dev->slock, flags); 868 869 dev->vbi_timeout_running = 0; 870 del_timer_sync(&dev->vbi_timeout); 871 } 872 873 static struct vb2_ops au0828_video_qops = { 874 .queue_setup = queue_setup, 875 .buf_prepare = buffer_prepare, 876 .buf_queue = buffer_queue, 877 .start_streaming = au0828_start_analog_streaming, 878 .stop_streaming = au0828_stop_streaming, 879 .wait_prepare = vb2_ops_wait_prepare, 880 .wait_finish = vb2_ops_wait_finish, 881 }; 882 883 /* ------------------------------------------------------------------ 884 V4L2 interface 885 ------------------------------------------------------------------*/ 886 /* 887 * au0828_analog_unregister 888 * unregister v4l2 devices 889 */ 890 void au0828_analog_unregister(struct au0828_dev *dev) 891 { 892 dprintk(1, "au0828_analog_unregister called\n"); 893 mutex_lock(&au0828_sysfs_lock); 894 video_unregister_device(&dev->vdev); 895 video_unregister_device(&dev->vbi_dev); 896 mutex_unlock(&au0828_sysfs_lock); 897 } 898 899 /* This function ensures that video frames continue to be delivered even if 900 the ITU-656 input isn't receiving any data (thereby preventing applications 901 such as tvtime from hanging) */ 902 static void au0828_vid_buffer_timeout(unsigned long data) 903 { 904 struct au0828_dev *dev = (struct au0828_dev *) data; 905 struct au0828_dmaqueue *dma_q = &dev->vidq; 906 struct au0828_buffer *buf; 907 unsigned char *vid_data; 908 unsigned long flags = 0; 909 910 spin_lock_irqsave(&dev->slock, flags); 911 912 buf = dev->isoc_ctl.buf; 913 if (buf != NULL) { 914 vid_data = vb2_plane_vaddr(&buf->vb, 0); 915 memset(vid_data, 0x00, buf->length); /* Blank green frame */ 916 buffer_filled(dev, dma_q, buf); 917 } 918 get_next_buf(dma_q, &buf); 919 920 if (dev->vid_timeout_running == 1) 921 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10)); 922 923 spin_unlock_irqrestore(&dev->slock, flags); 924 } 925 926 static void au0828_vbi_buffer_timeout(unsigned long data) 927 { 928 struct au0828_dev *dev = (struct au0828_dev *) data; 929 struct au0828_dmaqueue *dma_q = &dev->vbiq; 930 struct au0828_buffer *buf; 931 unsigned char *vbi_data; 932 unsigned long flags = 0; 933 934 spin_lock_irqsave(&dev->slock, flags); 935 936 buf = dev->isoc_ctl.vbi_buf; 937 if (buf != NULL) { 938 vbi_data = vb2_plane_vaddr(&buf->vb, 0); 939 memset(vbi_data, 0x00, buf->length); 940 buffer_filled(dev, dma_q, buf); 941 } 942 vbi_get_next_buf(dma_q, &buf); 943 944 if (dev->vbi_timeout_running == 1) 945 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10)); 946 spin_unlock_irqrestore(&dev->slock, flags); 947 } 948 949 static int au0828_v4l2_open(struct file *filp) 950 { 951 struct au0828_dev *dev = video_drvdata(filp); 952 int ret; 953 954 dprintk(1, 955 "%s called std_set %d dev_state %d stream users %d users %d\n", 956 __func__, dev->std_set_in_tuner_core, dev->dev_state, 957 dev->streaming_users, dev->users); 958 959 if (mutex_lock_interruptible(&dev->lock)) 960 return -ERESTARTSYS; 961 962 ret = v4l2_fh_open(filp); 963 if (ret) { 964 au0828_isocdbg("%s: v4l2_fh_open() returned error %d\n", 965 __func__, ret); 966 mutex_unlock(&dev->lock); 967 return ret; 968 } 969 970 if (dev->users == 0) { 971 au0828_analog_stream_enable(dev); 972 au0828_analog_stream_reset(dev); 973 dev->stream_state = STREAM_OFF; 974 dev->dev_state |= DEV_INITIALIZED; 975 } 976 dev->users++; 977 mutex_unlock(&dev->lock); 978 return ret; 979 } 980 981 static int au0828_v4l2_close(struct file *filp) 982 { 983 int ret; 984 struct au0828_dev *dev = video_drvdata(filp); 985 struct video_device *vdev = video_devdata(filp); 986 987 dprintk(1, 988 "%s called std_set %d dev_state %d stream users %d users %d\n", 989 __func__, dev->std_set_in_tuner_core, dev->dev_state, 990 dev->streaming_users, dev->users); 991 992 mutex_lock(&dev->lock); 993 if (vdev->vfl_type == VFL_TYPE_GRABBER && dev->vid_timeout_running) { 994 /* Cancel timeout thread in case they didn't call streamoff */ 995 dev->vid_timeout_running = 0; 996 del_timer_sync(&dev->vid_timeout); 997 } else if (vdev->vfl_type == VFL_TYPE_VBI && 998 dev->vbi_timeout_running) { 999 /* Cancel timeout thread in case they didn't call streamoff */ 1000 dev->vbi_timeout_running = 0; 1001 del_timer_sync(&dev->vbi_timeout); 1002 } 1003 1004 if (dev->dev_state == DEV_DISCONNECTED) 1005 goto end; 1006 1007 if (dev->users == 1) { 1008 /* Save some power by putting tuner to sleep */ 1009 v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_power, 0); 1010 dev->std_set_in_tuner_core = 0; 1011 1012 /* When close the device, set the usb intf0 into alt0 to free 1013 USB bandwidth */ 1014 ret = usb_set_interface(dev->usbdev, 0, 0); 1015 if (ret < 0) 1016 pr_info("Au0828 can't set alternate to 0!\n"); 1017 } 1018 end: 1019 _vb2_fop_release(filp, NULL); 1020 dev->users--; 1021 mutex_unlock(&dev->lock); 1022 return 0; 1023 } 1024 1025 /* Must be called with dev->lock held */ 1026 static void au0828_init_tuner(struct au0828_dev *dev) 1027 { 1028 struct v4l2_frequency f = { 1029 .frequency = dev->ctrl_freq, 1030 .type = V4L2_TUNER_ANALOG_TV, 1031 }; 1032 1033 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1034 dev->std_set_in_tuner_core, dev->dev_state); 1035 1036 if (dev->std_set_in_tuner_core) 1037 return; 1038 dev->std_set_in_tuner_core = 1; 1039 i2c_gate_ctrl(dev, 1); 1040 /* If we've never sent the standard in tuner core, do so now. 1041 We don't do this at device probe because we don't want to 1042 incur the cost of a firmware load */ 1043 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_std, dev->std); 1044 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, &f); 1045 i2c_gate_ctrl(dev, 0); 1046 } 1047 1048 static int au0828_set_format(struct au0828_dev *dev, unsigned int cmd, 1049 struct v4l2_format *format) 1050 { 1051 int ret; 1052 int width = format->fmt.pix.width; 1053 int height = format->fmt.pix.height; 1054 1055 /* If they are demanding a format other than the one we support, 1056 bail out (tvtime asks for UYVY and then retries with YUYV) */ 1057 if (format->fmt.pix.pixelformat != V4L2_PIX_FMT_UYVY) 1058 return -EINVAL; 1059 1060 /* format->fmt.pix.width only support 720 and height 480 */ 1061 if (width != 720) 1062 width = 720; 1063 if (height != 480) 1064 height = 480; 1065 1066 format->fmt.pix.width = width; 1067 format->fmt.pix.height = height; 1068 format->fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY; 1069 format->fmt.pix.bytesperline = width * 2; 1070 format->fmt.pix.sizeimage = width * height * 2; 1071 format->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; 1072 format->fmt.pix.field = V4L2_FIELD_INTERLACED; 1073 format->fmt.pix.priv = 0; 1074 1075 if (cmd == VIDIOC_TRY_FMT) 1076 return 0; 1077 1078 /* maybe set new image format, driver current only support 720*480 */ 1079 dev->width = width; 1080 dev->height = height; 1081 dev->frame_size = width * height * 2; 1082 dev->field_size = width * height; 1083 dev->bytesperline = width * 2; 1084 1085 if (dev->stream_state == STREAM_ON) { 1086 dprintk(1, "VIDIOC_SET_FMT: interrupting stream!\n"); 1087 ret = au0828_stream_interrupt(dev); 1088 if (ret != 0) { 1089 dprintk(1, "error interrupting video stream!\n"); 1090 return ret; 1091 } 1092 } 1093 1094 au0828_analog_stream_enable(dev); 1095 1096 return 0; 1097 } 1098 1099 static int vidioc_querycap(struct file *file, void *priv, 1100 struct v4l2_capability *cap) 1101 { 1102 struct video_device *vdev = video_devdata(file); 1103 struct au0828_dev *dev = video_drvdata(file); 1104 1105 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1106 dev->std_set_in_tuner_core, dev->dev_state); 1107 1108 strlcpy(cap->driver, "au0828", sizeof(cap->driver)); 1109 strlcpy(cap->card, dev->board.name, sizeof(cap->card)); 1110 usb_make_path(dev->usbdev, cap->bus_info, sizeof(cap->bus_info)); 1111 1112 /* set the device capabilities */ 1113 cap->device_caps = V4L2_CAP_AUDIO | 1114 V4L2_CAP_READWRITE | 1115 V4L2_CAP_STREAMING | 1116 V4L2_CAP_TUNER; 1117 if (vdev->vfl_type == VFL_TYPE_GRABBER) 1118 cap->device_caps |= V4L2_CAP_VIDEO_CAPTURE; 1119 else 1120 cap->device_caps |= V4L2_CAP_VBI_CAPTURE; 1121 cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS | 1122 V4L2_CAP_VBI_CAPTURE | V4L2_CAP_VIDEO_CAPTURE; 1123 return 0; 1124 } 1125 1126 static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv, 1127 struct v4l2_fmtdesc *f) 1128 { 1129 if (f->index) 1130 return -EINVAL; 1131 1132 dprintk(1, "%s called\n", __func__); 1133 1134 f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; 1135 strcpy(f->description, "Packed YUV2"); 1136 1137 f->flags = 0; 1138 f->pixelformat = V4L2_PIX_FMT_UYVY; 1139 1140 return 0; 1141 } 1142 1143 static int vidioc_g_fmt_vid_cap(struct file *file, void *priv, 1144 struct v4l2_format *f) 1145 { 1146 struct au0828_dev *dev = video_drvdata(file); 1147 1148 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1149 dev->std_set_in_tuner_core, dev->dev_state); 1150 1151 f->fmt.pix.width = dev->width; 1152 f->fmt.pix.height = dev->height; 1153 f->fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY; 1154 f->fmt.pix.bytesperline = dev->bytesperline; 1155 f->fmt.pix.sizeimage = dev->frame_size; 1156 f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; /* NTSC/PAL */ 1157 f->fmt.pix.field = V4L2_FIELD_INTERLACED; 1158 f->fmt.pix.priv = 0; 1159 return 0; 1160 } 1161 1162 static int vidioc_try_fmt_vid_cap(struct file *file, void *priv, 1163 struct v4l2_format *f) 1164 { 1165 struct au0828_dev *dev = video_drvdata(file); 1166 1167 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1168 dev->std_set_in_tuner_core, dev->dev_state); 1169 1170 return au0828_set_format(dev, VIDIOC_TRY_FMT, f); 1171 } 1172 1173 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv, 1174 struct v4l2_format *f) 1175 { 1176 struct au0828_dev *dev = video_drvdata(file); 1177 int rc; 1178 1179 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1180 dev->std_set_in_tuner_core, dev->dev_state); 1181 1182 rc = check_dev(dev); 1183 if (rc < 0) 1184 return rc; 1185 1186 if (vb2_is_busy(&dev->vb_vidq)) { 1187 pr_info("%s queue busy\n", __func__); 1188 rc = -EBUSY; 1189 goto out; 1190 } 1191 1192 rc = au0828_set_format(dev, VIDIOC_S_FMT, f); 1193 out: 1194 return rc; 1195 } 1196 1197 static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id norm) 1198 { 1199 struct au0828_dev *dev = video_drvdata(file); 1200 1201 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1202 dev->std_set_in_tuner_core, dev->dev_state); 1203 1204 if (norm == dev->std) 1205 return 0; 1206 1207 if (dev->streaming_users > 0) 1208 return -EBUSY; 1209 1210 dev->std = norm; 1211 1212 au0828_init_tuner(dev); 1213 1214 i2c_gate_ctrl(dev, 1); 1215 1216 /* 1217 * FIXME: when we support something other than 60Hz standards, 1218 * we are going to have to make the au0828 bridge adjust the size 1219 * of its capture buffer, which is currently hardcoded at 720x480 1220 */ 1221 1222 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_std, norm); 1223 1224 i2c_gate_ctrl(dev, 0); 1225 1226 return 0; 1227 } 1228 1229 static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *norm) 1230 { 1231 struct au0828_dev *dev = video_drvdata(file); 1232 1233 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1234 dev->std_set_in_tuner_core, dev->dev_state); 1235 1236 *norm = dev->std; 1237 return 0; 1238 } 1239 1240 static int vidioc_enum_input(struct file *file, void *priv, 1241 struct v4l2_input *input) 1242 { 1243 struct au0828_dev *dev = video_drvdata(file); 1244 unsigned int tmp; 1245 1246 static const char *inames[] = { 1247 [AU0828_VMUX_UNDEFINED] = "Undefined", 1248 [AU0828_VMUX_COMPOSITE] = "Composite", 1249 [AU0828_VMUX_SVIDEO] = "S-Video", 1250 [AU0828_VMUX_CABLE] = "Cable TV", 1251 [AU0828_VMUX_TELEVISION] = "Television", 1252 [AU0828_VMUX_DVB] = "DVB", 1253 [AU0828_VMUX_DEBUG] = "tv debug" 1254 }; 1255 1256 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1257 dev->std_set_in_tuner_core, dev->dev_state); 1258 1259 tmp = input->index; 1260 1261 if (tmp >= AU0828_MAX_INPUT) 1262 return -EINVAL; 1263 if (AUVI_INPUT(tmp).type == 0) 1264 return -EINVAL; 1265 1266 input->index = tmp; 1267 strcpy(input->name, inames[AUVI_INPUT(tmp).type]); 1268 if ((AUVI_INPUT(tmp).type == AU0828_VMUX_TELEVISION) || 1269 (AUVI_INPUT(tmp).type == AU0828_VMUX_CABLE)) { 1270 input->type |= V4L2_INPUT_TYPE_TUNER; 1271 input->audioset = 1; 1272 } else { 1273 input->type |= V4L2_INPUT_TYPE_CAMERA; 1274 input->audioset = 2; 1275 } 1276 1277 input->std = dev->vdev.tvnorms; 1278 1279 return 0; 1280 } 1281 1282 static int vidioc_g_input(struct file *file, void *priv, unsigned int *i) 1283 { 1284 struct au0828_dev *dev = video_drvdata(file); 1285 1286 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1287 dev->std_set_in_tuner_core, dev->dev_state); 1288 1289 *i = dev->ctrl_input; 1290 return 0; 1291 } 1292 1293 static void au0828_s_input(struct au0828_dev *dev, int index) 1294 { 1295 int i; 1296 1297 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1298 dev->std_set_in_tuner_core, dev->dev_state); 1299 1300 switch (AUVI_INPUT(index).type) { 1301 case AU0828_VMUX_SVIDEO: 1302 dev->input_type = AU0828_VMUX_SVIDEO; 1303 dev->ctrl_ainput = 1; 1304 break; 1305 case AU0828_VMUX_COMPOSITE: 1306 dev->input_type = AU0828_VMUX_COMPOSITE; 1307 dev->ctrl_ainput = 1; 1308 break; 1309 case AU0828_VMUX_TELEVISION: 1310 dev->input_type = AU0828_VMUX_TELEVISION; 1311 dev->ctrl_ainput = 0; 1312 break; 1313 default: 1314 dprintk(1, "unknown input type set [%d]\n", 1315 AUVI_INPUT(index).type); 1316 break; 1317 } 1318 1319 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_routing, 1320 AUVI_INPUT(index).vmux, 0, 0); 1321 1322 for (i = 0; i < AU0828_MAX_INPUT; i++) { 1323 int enable = 0; 1324 if (AUVI_INPUT(i).audio_setup == NULL) 1325 continue; 1326 1327 if (i == index) 1328 enable = 1; 1329 else 1330 enable = 0; 1331 if (enable) { 1332 (AUVI_INPUT(i).audio_setup)(dev, enable); 1333 } else { 1334 /* Make sure we leave it turned on if some 1335 other input is routed to this callback */ 1336 if ((AUVI_INPUT(i).audio_setup) != 1337 ((AUVI_INPUT(index).audio_setup))) { 1338 (AUVI_INPUT(i).audio_setup)(dev, enable); 1339 } 1340 } 1341 } 1342 1343 v4l2_device_call_all(&dev->v4l2_dev, 0, audio, s_routing, 1344 AUVI_INPUT(index).amux, 0, 0); 1345 } 1346 1347 static int vidioc_s_input(struct file *file, void *priv, unsigned int index) 1348 { 1349 struct au0828_dev *dev = video_drvdata(file); 1350 1351 dprintk(1, "VIDIOC_S_INPUT in function %s, input=%d\n", __func__, 1352 index); 1353 if (index >= AU0828_MAX_INPUT) 1354 return -EINVAL; 1355 if (AUVI_INPUT(index).type == 0) 1356 return -EINVAL; 1357 dev->ctrl_input = index; 1358 au0828_s_input(dev, index); 1359 return 0; 1360 } 1361 1362 static int vidioc_enumaudio(struct file *file, void *priv, struct v4l2_audio *a) 1363 { 1364 if (a->index > 1) 1365 return -EINVAL; 1366 1367 dprintk(1, "%s called\n", __func__); 1368 1369 if (a->index == 0) 1370 strcpy(a->name, "Television"); 1371 else 1372 strcpy(a->name, "Line in"); 1373 1374 a->capability = V4L2_AUDCAP_STEREO; 1375 return 0; 1376 } 1377 1378 static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a) 1379 { 1380 struct au0828_dev *dev = video_drvdata(file); 1381 1382 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1383 dev->std_set_in_tuner_core, dev->dev_state); 1384 1385 a->index = dev->ctrl_ainput; 1386 if (a->index == 0) 1387 strcpy(a->name, "Television"); 1388 else 1389 strcpy(a->name, "Line in"); 1390 1391 a->capability = V4L2_AUDCAP_STEREO; 1392 return 0; 1393 } 1394 1395 static int vidioc_s_audio(struct file *file, void *priv, const struct v4l2_audio *a) 1396 { 1397 struct au0828_dev *dev = video_drvdata(file); 1398 1399 if (a->index != dev->ctrl_ainput) 1400 return -EINVAL; 1401 1402 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1403 dev->std_set_in_tuner_core, dev->dev_state); 1404 return 0; 1405 } 1406 1407 static int vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t) 1408 { 1409 struct au0828_dev *dev = video_drvdata(file); 1410 1411 if (t->index != 0) 1412 return -EINVAL; 1413 1414 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1415 dev->std_set_in_tuner_core, dev->dev_state); 1416 1417 strcpy(t->name, "Auvitek tuner"); 1418 1419 au0828_init_tuner(dev); 1420 i2c_gate_ctrl(dev, 1); 1421 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_tuner, t); 1422 i2c_gate_ctrl(dev, 0); 1423 return 0; 1424 } 1425 1426 static int vidioc_s_tuner(struct file *file, void *priv, 1427 const struct v4l2_tuner *t) 1428 { 1429 struct au0828_dev *dev = video_drvdata(file); 1430 1431 if (t->index != 0) 1432 return -EINVAL; 1433 1434 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1435 dev->std_set_in_tuner_core, dev->dev_state); 1436 1437 au0828_init_tuner(dev); 1438 i2c_gate_ctrl(dev, 1); 1439 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_tuner, t); 1440 i2c_gate_ctrl(dev, 0); 1441 1442 dprintk(1, "VIDIOC_S_TUNER: signal = %x, afc = %x\n", t->signal, 1443 t->afc); 1444 1445 return 0; 1446 1447 } 1448 1449 static int vidioc_g_frequency(struct file *file, void *priv, 1450 struct v4l2_frequency *freq) 1451 { 1452 struct au0828_dev *dev = video_drvdata(file); 1453 1454 if (freq->tuner != 0) 1455 return -EINVAL; 1456 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1457 dev->std_set_in_tuner_core, dev->dev_state); 1458 freq->frequency = dev->ctrl_freq; 1459 return 0; 1460 } 1461 1462 static int vidioc_s_frequency(struct file *file, void *priv, 1463 const struct v4l2_frequency *freq) 1464 { 1465 struct au0828_dev *dev = video_drvdata(file); 1466 struct v4l2_frequency new_freq = *freq; 1467 1468 if (freq->tuner != 0) 1469 return -EINVAL; 1470 1471 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1472 dev->std_set_in_tuner_core, dev->dev_state); 1473 1474 au0828_init_tuner(dev); 1475 i2c_gate_ctrl(dev, 1); 1476 1477 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, freq); 1478 /* Get the actual set (and possibly clamped) frequency */ 1479 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_frequency, &new_freq); 1480 dev->ctrl_freq = new_freq.frequency; 1481 1482 i2c_gate_ctrl(dev, 0); 1483 1484 au0828_analog_stream_reset(dev); 1485 1486 return 0; 1487 } 1488 1489 1490 /* RAW VBI ioctls */ 1491 1492 static int vidioc_g_fmt_vbi_cap(struct file *file, void *priv, 1493 struct v4l2_format *format) 1494 { 1495 struct au0828_dev *dev = video_drvdata(file); 1496 1497 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1498 dev->std_set_in_tuner_core, dev->dev_state); 1499 1500 format->fmt.vbi.samples_per_line = dev->vbi_width; 1501 format->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY; 1502 format->fmt.vbi.offset = 0; 1503 format->fmt.vbi.flags = 0; 1504 format->fmt.vbi.sampling_rate = 6750000 * 4 / 2; 1505 1506 format->fmt.vbi.count[0] = dev->vbi_height; 1507 format->fmt.vbi.count[1] = dev->vbi_height; 1508 format->fmt.vbi.start[0] = 21; 1509 format->fmt.vbi.start[1] = 284; 1510 memset(format->fmt.vbi.reserved, 0, sizeof(format->fmt.vbi.reserved)); 1511 1512 return 0; 1513 } 1514 1515 static int vidioc_cropcap(struct file *file, void *priv, 1516 struct v4l2_cropcap *cc) 1517 { 1518 struct au0828_dev *dev = video_drvdata(file); 1519 1520 if (cc->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 1521 return -EINVAL; 1522 1523 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1524 dev->std_set_in_tuner_core, dev->dev_state); 1525 1526 cc->bounds.left = 0; 1527 cc->bounds.top = 0; 1528 cc->bounds.width = dev->width; 1529 cc->bounds.height = dev->height; 1530 1531 cc->defrect = cc->bounds; 1532 1533 cc->pixelaspect.numerator = 54; 1534 cc->pixelaspect.denominator = 59; 1535 1536 return 0; 1537 } 1538 1539 #ifdef CONFIG_VIDEO_ADV_DEBUG 1540 static int vidioc_g_register(struct file *file, void *priv, 1541 struct v4l2_dbg_register *reg) 1542 { 1543 struct au0828_dev *dev = video_drvdata(file); 1544 1545 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1546 dev->std_set_in_tuner_core, dev->dev_state); 1547 1548 reg->val = au0828_read(dev, reg->reg); 1549 reg->size = 1; 1550 return 0; 1551 } 1552 1553 static int vidioc_s_register(struct file *file, void *priv, 1554 const struct v4l2_dbg_register *reg) 1555 { 1556 struct au0828_dev *dev = video_drvdata(file); 1557 1558 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1559 dev->std_set_in_tuner_core, dev->dev_state); 1560 1561 return au0828_writereg(dev, reg->reg, reg->val); 1562 } 1563 #endif 1564 1565 static int vidioc_log_status(struct file *file, void *fh) 1566 { 1567 struct video_device *vdev = video_devdata(file); 1568 1569 dprintk(1, "%s called\n", __func__); 1570 1571 v4l2_ctrl_log_status(file, fh); 1572 v4l2_device_call_all(vdev->v4l2_dev, 0, core, log_status); 1573 return 0; 1574 } 1575 1576 void au0828_v4l2_suspend(struct au0828_dev *dev) 1577 { 1578 struct urb *urb; 1579 int i; 1580 1581 pr_info("stopping V4L2\n"); 1582 1583 if (dev->stream_state == STREAM_ON) { 1584 pr_info("stopping V4L2 active URBs\n"); 1585 au0828_analog_stream_disable(dev); 1586 /* stop urbs */ 1587 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) { 1588 urb = dev->isoc_ctl.urb[i]; 1589 if (urb) { 1590 if (!irqs_disabled()) 1591 usb_kill_urb(urb); 1592 else 1593 usb_unlink_urb(urb); 1594 } 1595 } 1596 } 1597 1598 if (dev->vid_timeout_running) 1599 del_timer_sync(&dev->vid_timeout); 1600 if (dev->vbi_timeout_running) 1601 del_timer_sync(&dev->vbi_timeout); 1602 } 1603 1604 void au0828_v4l2_resume(struct au0828_dev *dev) 1605 { 1606 int i, rc; 1607 1608 pr_info("restarting V4L2\n"); 1609 1610 if (dev->stream_state == STREAM_ON) { 1611 au0828_stream_interrupt(dev); 1612 au0828_init_tuner(dev); 1613 } 1614 1615 if (dev->vid_timeout_running) 1616 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10)); 1617 if (dev->vbi_timeout_running) 1618 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10)); 1619 1620 /* If we were doing ac97 instead of i2s, it would go here...*/ 1621 au0828_i2s_init(dev); 1622 1623 au0828_analog_stream_enable(dev); 1624 1625 if (!(dev->stream_state == STREAM_ON)) { 1626 au0828_analog_stream_reset(dev); 1627 /* submit urbs */ 1628 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) { 1629 rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_ATOMIC); 1630 if (rc) { 1631 au0828_isocdbg("submit of urb %i failed (error=%i)\n", 1632 i, rc); 1633 au0828_uninit_isoc(dev); 1634 } 1635 } 1636 } 1637 } 1638 1639 static struct v4l2_file_operations au0828_v4l_fops = { 1640 .owner = THIS_MODULE, 1641 .open = au0828_v4l2_open, 1642 .release = au0828_v4l2_close, 1643 .read = vb2_fop_read, 1644 .poll = vb2_fop_poll, 1645 .mmap = vb2_fop_mmap, 1646 .unlocked_ioctl = video_ioctl2, 1647 }; 1648 1649 static const struct v4l2_ioctl_ops video_ioctl_ops = { 1650 .vidioc_querycap = vidioc_querycap, 1651 .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap, 1652 .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap, 1653 .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap, 1654 .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap, 1655 .vidioc_g_fmt_vbi_cap = vidioc_g_fmt_vbi_cap, 1656 .vidioc_try_fmt_vbi_cap = vidioc_g_fmt_vbi_cap, 1657 .vidioc_s_fmt_vbi_cap = vidioc_g_fmt_vbi_cap, 1658 .vidioc_enumaudio = vidioc_enumaudio, 1659 .vidioc_g_audio = vidioc_g_audio, 1660 .vidioc_s_audio = vidioc_s_audio, 1661 .vidioc_cropcap = vidioc_cropcap, 1662 1663 .vidioc_reqbufs = vb2_ioctl_reqbufs, 1664 .vidioc_create_bufs = vb2_ioctl_create_bufs, 1665 .vidioc_prepare_buf = vb2_ioctl_prepare_buf, 1666 .vidioc_querybuf = vb2_ioctl_querybuf, 1667 .vidioc_qbuf = vb2_ioctl_qbuf, 1668 .vidioc_dqbuf = vb2_ioctl_dqbuf, 1669 .vidioc_expbuf = vb2_ioctl_expbuf, 1670 1671 .vidioc_s_std = vidioc_s_std, 1672 .vidioc_g_std = vidioc_g_std, 1673 .vidioc_enum_input = vidioc_enum_input, 1674 .vidioc_g_input = vidioc_g_input, 1675 .vidioc_s_input = vidioc_s_input, 1676 1677 .vidioc_streamon = vb2_ioctl_streamon, 1678 .vidioc_streamoff = vb2_ioctl_streamoff, 1679 1680 .vidioc_g_tuner = vidioc_g_tuner, 1681 .vidioc_s_tuner = vidioc_s_tuner, 1682 .vidioc_g_frequency = vidioc_g_frequency, 1683 .vidioc_s_frequency = vidioc_s_frequency, 1684 #ifdef CONFIG_VIDEO_ADV_DEBUG 1685 .vidioc_g_register = vidioc_g_register, 1686 .vidioc_s_register = vidioc_s_register, 1687 #endif 1688 .vidioc_log_status = vidioc_log_status, 1689 .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, 1690 .vidioc_unsubscribe_event = v4l2_event_unsubscribe, 1691 }; 1692 1693 static const struct video_device au0828_video_template = { 1694 .fops = &au0828_v4l_fops, 1695 .release = video_device_release_empty, 1696 .ioctl_ops = &video_ioctl_ops, 1697 .tvnorms = V4L2_STD_NTSC_M | V4L2_STD_PAL_M, 1698 }; 1699 1700 static int au0828_vb2_setup(struct au0828_dev *dev) 1701 { 1702 int rc; 1703 struct vb2_queue *q; 1704 1705 /* Setup Videobuf2 for Video capture */ 1706 q = &dev->vb_vidq; 1707 q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; 1708 q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR | VB2_DMABUF; 1709 q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; 1710 q->drv_priv = dev; 1711 q->buf_struct_size = sizeof(struct au0828_buffer); 1712 q->ops = &au0828_video_qops; 1713 q->mem_ops = &vb2_vmalloc_memops; 1714 1715 rc = vb2_queue_init(q); 1716 if (rc < 0) 1717 return rc; 1718 1719 /* Setup Videobuf2 for VBI capture */ 1720 q = &dev->vb_vbiq; 1721 q->type = V4L2_BUF_TYPE_VBI_CAPTURE; 1722 q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR | VB2_DMABUF; 1723 q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; 1724 q->drv_priv = dev; 1725 q->buf_struct_size = sizeof(struct au0828_buffer); 1726 q->ops = &au0828_vbi_qops; 1727 q->mem_ops = &vb2_vmalloc_memops; 1728 1729 rc = vb2_queue_init(q); 1730 if (rc < 0) 1731 return rc; 1732 1733 return 0; 1734 } 1735 1736 /**************************************************************************/ 1737 1738 int au0828_analog_register(struct au0828_dev *dev, 1739 struct usb_interface *interface) 1740 { 1741 int retval = -ENOMEM; 1742 struct usb_host_interface *iface_desc; 1743 struct usb_endpoint_descriptor *endpoint; 1744 int i, ret; 1745 1746 dprintk(1, "au0828_analog_register called for intf#%d!\n", 1747 interface->cur_altsetting->desc.bInterfaceNumber); 1748 1749 /* set au0828 usb interface0 to as5 */ 1750 retval = usb_set_interface(dev->usbdev, 1751 interface->cur_altsetting->desc.bInterfaceNumber, 5); 1752 if (retval != 0) { 1753 pr_info("Failure setting usb interface0 to as5\n"); 1754 return retval; 1755 } 1756 1757 /* Figure out which endpoint has the isoc interface */ 1758 iface_desc = interface->cur_altsetting; 1759 for (i = 0; i < iface_desc->desc.bNumEndpoints; i++) { 1760 endpoint = &iface_desc->endpoint[i].desc; 1761 if (((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) 1762 == USB_DIR_IN) && 1763 ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) 1764 == USB_ENDPOINT_XFER_ISOC)) { 1765 1766 /* we find our isoc in endpoint */ 1767 u16 tmp = le16_to_cpu(endpoint->wMaxPacketSize); 1768 dev->max_pkt_size = (tmp & 0x07ff) * 1769 (((tmp & 0x1800) >> 11) + 1); 1770 dev->isoc_in_endpointaddr = endpoint->bEndpointAddress; 1771 dprintk(1, 1772 "Found isoc endpoint 0x%02x, max size = %d\n", 1773 dev->isoc_in_endpointaddr, dev->max_pkt_size); 1774 } 1775 } 1776 if (!(dev->isoc_in_endpointaddr)) { 1777 pr_info("Could not locate isoc endpoint\n"); 1778 return -ENODEV; 1779 } 1780 1781 init_waitqueue_head(&dev->open); 1782 spin_lock_init(&dev->slock); 1783 1784 /* init video dma queues */ 1785 INIT_LIST_HEAD(&dev->vidq.active); 1786 INIT_LIST_HEAD(&dev->vbiq.active); 1787 1788 setup_timer(&dev->vid_timeout, au0828_vid_buffer_timeout, 1789 (unsigned long)dev); 1790 setup_timer(&dev->vbi_timeout, au0828_vbi_buffer_timeout, 1791 (unsigned long)dev); 1792 1793 dev->width = NTSC_STD_W; 1794 dev->height = NTSC_STD_H; 1795 dev->field_size = dev->width * dev->height; 1796 dev->frame_size = dev->field_size << 1; 1797 dev->bytesperline = dev->width << 1; 1798 dev->vbi_width = 720; 1799 dev->vbi_height = 1; 1800 dev->ctrl_ainput = 0; 1801 dev->ctrl_freq = 960; 1802 dev->std = V4L2_STD_NTSC_M; 1803 au0828_s_input(dev, 0); 1804 1805 mutex_init(&dev->vb_queue_lock); 1806 mutex_init(&dev->vb_vbi_queue_lock); 1807 1808 /* Fill the video capture device struct */ 1809 dev->vdev = au0828_video_template; 1810 dev->vdev.v4l2_dev = &dev->v4l2_dev; 1811 dev->vdev.lock = &dev->lock; 1812 dev->vdev.queue = &dev->vb_vidq; 1813 dev->vdev.queue->lock = &dev->vb_queue_lock; 1814 strcpy(dev->vdev.name, "au0828a video"); 1815 1816 /* Setup the VBI device */ 1817 dev->vbi_dev = au0828_video_template; 1818 dev->vbi_dev.v4l2_dev = &dev->v4l2_dev; 1819 dev->vbi_dev.lock = &dev->lock; 1820 dev->vbi_dev.queue = &dev->vb_vbiq; 1821 dev->vbi_dev.queue->lock = &dev->vb_vbi_queue_lock; 1822 strcpy(dev->vbi_dev.name, "au0828a vbi"); 1823 1824 /* initialize videobuf2 stuff */ 1825 retval = au0828_vb2_setup(dev); 1826 if (retval != 0) { 1827 dprintk(1, "unable to setup videobuf2 queues (error = %d).\n", 1828 retval); 1829 return -ENODEV; 1830 } 1831 1832 /* Register the v4l2 device */ 1833 video_set_drvdata(&dev->vdev, dev); 1834 retval = video_register_device(&dev->vdev, VFL_TYPE_GRABBER, -1); 1835 if (retval != 0) { 1836 dprintk(1, "unable to register video device (error = %d).\n", 1837 retval); 1838 ret = -ENODEV; 1839 goto err_reg_vdev; 1840 } 1841 1842 /* Register the vbi device */ 1843 video_set_drvdata(&dev->vbi_dev, dev); 1844 retval = video_register_device(&dev->vbi_dev, VFL_TYPE_VBI, -1); 1845 if (retval != 0) { 1846 dprintk(1, "unable to register vbi device (error = %d).\n", 1847 retval); 1848 ret = -ENODEV; 1849 goto err_reg_vbi_dev; 1850 } 1851 1852 dprintk(1, "%s completed!\n", __func__); 1853 1854 return 0; 1855 1856 err_reg_vbi_dev: 1857 video_unregister_device(&dev->vdev); 1858 err_reg_vdev: 1859 vb2_queue_release(&dev->vb_vidq); 1860 vb2_queue_release(&dev->vb_vbiq); 1861 return ret; 1862 } 1863 1864